Adjustable clump-sole.



No. 7",.309. Patented Oct. I4, 1902.

. A. s. HARTRICK.

ADJUSTABLE CLUMP SOLE.

(Application filed Nov. 23, 1900.)

(No Model.)

wv/fiesses y demfi My? Zi:% Y M ma W UNTTED STATES PATENT OFFICE.

ARTHUR STANDISII HARTRIOK, OF HEYFIELD, VICTORIA, AUSTRALIA.

ADJUSTABLE CLUMP-SOLE.

SPECIFICATION forming part of Letters Patent N 0. 711,309, dated October14:, 1902.

Application filed November 23, 1900. Serial No. 37,527- (No model.)

To rtZZ whom it may concern:

Be it known that I, ARTHUR STANDISH HARTRIOK, mounted constable ofpolice,a subject of the Queen of Great Britain, residing at Heyfield, inthe State of Victoria, Austra lia, have invented an Improved AdjustableClump-Sole for Footwear, of which the following is a specification.

This invention provides a clump-sole for footwear which is inexpensive,inasmuch as it is made from a single strip, as 2, cut straight from ahide of leather or from a sheet of other suitable composite material, sothat there is no waste. This strip is readily adjusted to the outercontour of the sole without cutting and trimming. It is lighter and moreyielding to the foot than ordinary solid clump-soles and is, moreover,more comfortable and effectual than fillets attached to the center ofthe sole, inasmuch as it ailords a perfectly even tread for the foot anda more secure grip on the ground, besides being cheaper to manufacture.

To attain the desired objects, I cut a hide of leather or sheet of othersuitable composite material (such as various gutta-percha or indiarubber and cork compositions) into straight strips of the desired widthand length, so that there shall be no waste, and these I coil (whilepreserving the shape or outer contour of a sole) and mold them so thatthey will retain the said peculiarities when removed from the mold.

Instead of being cut into strips and molded my improved adjustableclump-sole may be stamped out of the hide.

The accompanying drawing illustrates my clump-sole manufactured asdescribed, and it will be seen that one edge of the strip composing theclump-sole is unbroken, so that when said clump-sole is applied to thesole of the shoe what constituted the sides and tip of said clump-solewill be unbroken, thereby bringing said sides and tip of said clump-soleflush or coincident with the corresponding portions of the shoe-sole,hence securing a neat finish.

The strips may be perforated, as at 3, for the reception of rivets, bywhich they may be secured to the sole, while the particular shape orconformation of my improved clump-sole insures unusual lateral fiexureand with the spaces between the coils of decreasing diameter will enablethe person fitting them on to spring them one way or the other, so as toget a perfect fit flush with the outer contour of the sole without theuse of a knifeor other paring instrument.

My improved clu m p-sole is of particularadvantage to railway guards andmen following occupations where slipping would be dangerous, besidesordinary pedestrians, while on account of its easy application andadaptability it will be particularly handy on the battlefield, wherequick repairs may be required.

My improved clumpsole can be applied with equal usefulness to either anew boot or a boot much worn, and in the latter case is thereforespecially valuable to the poorer classes on account of its cheapness inconstruction, as it would enable considerable f urther wear to beobtained out of a boot which by reason of defects or wear of the upperwould not be considered worth resoling in the ordinary manner.

The coiled strip 2 is shown as having wedgeshaped notches 4 situated atthe bends of the coils of said strip, by virtue of which the properamount of lateral flexibility of the sole is secured.

Having now particularly described and as certained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1. An improved adjustable sole for footwear consistingof a coiled fiat strip of suitable material.

2. An improved adjustable sole for footwear consisting of a coiled fiatstrip of suitable material having an unbroken edge.

3. An improved sole for footwear consisting of a coiled strip ofsuitable material, the coils being separated laterally and one edge ofthe strip being unbroken, the other edge thereof having notches.

4. An improved sole for footwear consisting of a coiled flat perforatedstrip, one edge of the strip being unbroken and the other edge beingnotched.

5. An improved sole for footwear consisting of a coiled fiat strip ofsuitable material lying in a single plane.

ARTHUR STANDISH HARTRICK.

Witnesses:

EDWARD WATERS, J r., WALTER SMYTHE BAYSTON.

